# Limesdr xtrx not found

**URL:** <https://discourse.myriadrf.org/t/limesdr-xtrx-not-found/8342>\
**Category:** General Discussion\
**Created:** [6 June 2024 18:29 UTC](https://discourse.myriadrf.org/t/limesdr-xtrx-not-found/8342 "2024-06-06T18:29:29Z")\
**Posts on this page:** 1\
**Showing post:** 35

<div class="post-metadata">

**Author:** ![masefi](https://avatars.discourse-cdn.com/v4/letter/m/c67d28/32.png) [@masefi](https://discourse.myriadrf.org/u/masefi)\
**Post date:** [27 June 2024 19:20 UTC](https://discourse.myriadrf.org/t/limesdr-xtrx-not-found/8342/35 "2024-06-27T19:20:28Z")

</div>

With the Pineboards mPCIe hat the XTRX is detected more reliably and `limeDevice` returns a valid device. However running the `basicRX` example fails with the following error:

```auto
Devices found :
0: LimeXTRX0, media=PCIe, addr=/dev/LimeXTRX0_control, serial=000000008f59d892

terminate called after throwing an instance of 'std::runtime_error'
    what(): : failed to MMAP Rx DMA buffer
Aborted

```

Any ideas on how to get around this?

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